Franz hugekshoff



(No Model.)

I F. HUGE RSHOFF. UENTRIPUGAL TESTING MAGHINE.

.No. 523,351. Patented July '24,, 1894. I

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FRANZ HUGERSHOFF, or LEIPSIO, GERMANY.

.CENTRll-UGAL TESTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 523,351 dated July 24,1894.

Application filed November 11, 1893.

To all whom it may concern:

Be it known that I, FRANZ HUGERSHOFF, a subject of the Emperor ofGermany, residing at Leipsic, Germany, have invented certain new anduseful Improvements in Centrifugal Testing-Machines, (for which I haveobtained Austrian Patent No. 40,589, dated July 17, 18 93, and FrenchPatent No. 3,842, dated June 29, 1893,) of which the followingis aspecification. 1 v

My invention has relation to centrifugal machines adapted to be actuatedby handpower; and it relates more particularly to the construction andarrangement of such a machine.

The principal objects of my invention are first, to provide a simple,durable and efficient hand power centrifugal machine; second, to providesuch a machine for use in medical or bacteriological examinations forthe purpose of separating the bacilli from fluids or semifluid matter;third, to provide such a machine withadrum havingadetachable cap orcover and means connected with the drum adapted to clamp and hold toposition glass vials or similar receptacles in a radial position withrespect to the axis of the drum; and fourth, to provide a two part drumwith means for detachably clamping vials or fragile receptacles theretoand said drum provided with a vertically disposed shaft journaled to asupport provided with ball bearings and with means for rapidly rotatingsaid drum for the segregation or separation of the particles containedin the vials or fragile receptacles radially disposed with respect tothe axis of the drum, for effecting bacteriological and otherexaminations.

My invention consists of a centrifugal machine constructed and arrangedfor operation in substantially the manner hereinafter described andclaimed.

The nature and general features of my invention will be more fullyunderstood, from the following description taken'in connection with theaccompanying drawing forming part hereof, which illustrates inperspective a machine embodying the characteristic features of myinvention detachably connected with the end of ,a'table and with the capor Serial No. 90,616. (No model.) Patented in France June 29, 1893,110.3.842. and in Austria-Hungary July 17, 1893, No. 40,589.

to View the location of the vials or fragile receptacles in respect tothe axisof the drum and the said vials or receptacles detachablyengaging clamps connected with the internal bottom of the drum.

Referring to the drawing a, is a table.

B, is a supportof rectangular form provided with a clamp b, and with aseat b, secured to the surface of the table by'means of screws b 0 andc, are sockets forming bearings for the shaft 0-, resting upon oragainst ball bearings c and 0 which permit of an easy frictionlessrotation of the same, thereby requiring less power to drive said shaftand at the same time permitting the shaftto run for a greater length oftime when actuated by means of the string or cord 01, by inserting thesame through the opening (1, in the shaft 0, and drawing on the cord orstring d, in backward and forward directions by means of the handles (1connected therewith.

E,'is a two part drum provided with flanged sides 6, and with aremovable cap or cover 6, provided with a tightening nut e secured to acollar or sleeve 6 formed integral with the cap or cover 6, of the drumE. In the bottom of the drum are provided spring clamps e and 6 fordetachably engaging vials or glass receptacles f and f, in such manneras to respectively embrace the body of each vial, as well as the neckthereof, for example, as illustrated in the drawing. 7

The upper end of the shaft 0, is threaded so that in the application ofthe cap or cover of the drum to the flanged portion or part thereof, byturning the tightening screw or nut e thereon, the same may be rigidlysecured to the shaft and the lower part of the drum is secured at thehub portion c thereof rigidly to said shaft 0, so as to permit of therapid rotation of the two members constituting the drum E, when causedto assume a of urinary substances or particles in saliva for thepurposes of bacteriological examinations may be readily effected inorder to dis cover any of the germs of disease in one form or anothertherein and for laboratory and other purposes.

Having thus described the nature and objects of my invention, what Iclaim as new, and desire to secure by Letters Patent, is

A hand-power centrifugal machine provided with a standard having aclamping device connected therewith, and a seat, a ball

